IMR 8133 New Powder

[JimKirk]

IMR is introducing a new powder call IMR 8133 ... supposed to be near the Retumbo burning range ...

Should be useful in my .264 WM ... May even work in the .25/06 .... Data already on Hodgdon's web site for both ...

 

[JO JO]

is it on the shelf ? IMR is releasing new powders like unequal they released data over a year ago and it still has not hit the shelf ?
Hodgdon has data for several powders that are not released yet like w244 and unequal and probably others ?
I am just curious if anyone else has noticed the release without the actual release of new powders

 

[JimKirk]

After reading a little more ... It said February 2018 ....

 

[wombat13]

Looks like it offers up to 150 FPS advantage over Retumbo in the most overbore cartridges with the heaviest bullets. Pretty big advantage in .25-06 with 120 grain bullets. Some advantage in .300wm with 200 gr and heavier bullets. Only two chamberings I checked.

 

[wombat13]

hodgdon load center has data for: .243 win, 6mm Rem, .25-06 Rem, 6.5-300 Weatherby, .264wm, .280AI, 7mmRM, 7mmWeatherby, 7mm STW, 28 Nosler, 30 Nosler, .300wm, .300 weatherby, .300 rum, .30-378, .33 Nosler, .338 lapua, .338 rum, .338-378, .470 nitro